.page-home {
  --home-pad: 20px;
  --home-r-lg: 96px 96px 32px 32px;
  --home-r-sm: 32px 32px 32px 8px;
  --home-glow: 0 24px 60px rgba(11, 10, 20, 0.55);
  display: block;
  color: var(--text);
  background: var(--ink);
}

.page-home .shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--home-pad);
  padding-right: var(--home-pad);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding: 40px 0 56px;
  background:
    radial-gradient(circle at 84% 12%, rgba(142, 27, 46, 0.45), transparent 60%),
    radial-gradient(circle at 12% 78%, rgba(107, 76, 230, 0.22), transparent 62%),
    var(--ink);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(232, 180, 74, 0.16) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.35;
  pointer-events: none;
}

.page-home .home-hero__grid {
  position: relative;
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-home .home-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-home .home-hero__dot {
  width: 8px;
  height: 8px;
  border-radius: 50% 50% 50% 2px;
  background: var(--gold);
}

.page-home .home-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-body);
  font-weight: 900;
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-home .home-hero__title::after {
  content: "";
  display: block;
  width: 64px;
  height: 1px;
  margin-top: 22px;
  background: var(--gold);
}

.page-home .home-hero__lede {
  max-width: 34em;
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.page-home .home-hero__visual {
  position: relative;
}

.page-home .home-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 120px 32px 96px 24px;
  object-fit: cover;
  opacity: 0.92;
  box-shadow: var(--home-glow);
}

/* ---------- 章节预览 ---------- */
.page-home .home-hero__map {
  position: relative;
  margin-top: 56px;
}

.page-home .home-hero__mapnote {
  max-width: 40em;
  margin: 0 0 26px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .chapnav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-home .chapnav__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num label"
    "num hint";
  gap: 2px 18px;
  align-items: baseline;
  padding: 16px 0 16px 20px;
  border-left: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-home .chapnav__num {
  grid-area: num;
  font-family: var(--font-num);
  font-size: 26px;
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.page-home .chapnav__label {
  grid-area: label;
  font-size: 18px;
  font-weight: 700;
}

.page-home .chapnav__hint {
  grid-area: hint;
  font-size: 13px;
  color: var(--muted);
}

.page-home .chapnav__link:hover,
.page-home .chapnav__link:focus-visible {
  border-left-color: var(--gold);
  transform: translateX(4px);
}

.page-home .chapnav__link:hover .chapnav__label,
.page-home .chapnav__link:focus-visible .chapnav__label {
  color: var(--gold-soft);
}

/* ---------- 章节骨架 ---------- */
.page-home .home-chapter {
  position: relative;
  padding: 84px 0;
}

.page-home .home-chapter + .home-chapter {
  border-top: 1px solid var(--line-soft);
}

.page-home .home-chapter__head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 40px;
}

.page-home .home-chapter__num {
  font-family: var(--font-num);
  font-size: 68px;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: var(--gold);
  padding-right: 16px;
  border-right: 1px solid var(--gold);
}

.page-home .home-chapter__kicker {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-home .home-chapter__title {
  margin: 0;
  font-size: 24px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-home .home-chapter__lede {
  max-width: var(--measure);
  margin: 0 0 34px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 01 版本演进 ---------- */
.page-home .home-version {
  display: grid;
  gap: 34px;
}

.page-home .home-version__figure {
  margin: 0;
}

.page-home .home-version__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--home-r-lg);
  object-fit: cover;
  opacity: 0.85;
}

.page-home .home-version__caption {
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-home .track {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-home .track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(var(--gold), transparent 92%);
}

.page-home .track__item {
  position: relative;
  padding: 0 0 30px 34px;
}

.page-home .track__item:last-child {
  padding-bottom: 0;
}

.page-home .track__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 15px;
  height: 15px;
  border-radius: 50% 50% 50% 4px;
  background: var(--surface);
  border: 1px solid var(--gold);
}

.page-home .track__ver {
  display: block;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-home .track__name {
  margin: 6px 0 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.page-home .track__item p {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 02 首次上手 ---------- */
.page-home .home-start {
  display: grid;
  gap: 30px;
}

.page-home .home-start__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 32px 96px 32px 32px;
  object-fit: cover;
  opacity: 0.9;
}

.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-home .steps__item {
  position: relative;
  padding: 28px 26px 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--home-r-sm);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-home .steps__item:nth-child(2) {
  border-radius: 32px 96px 32px 32px;
  background: var(--ink-soft);
}

.page-home .steps__item:hover {
  border-color: var(--neon);
  transform: translateY(-4px);
}

.page-home .steps__num {
  display: block;
  font-family: var(--font-num);
  font-size: 40px;
  line-height: 1;
  color: var(--gold);
  margin-bottom: 14px;
}

.page-home .steps__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
}

.page-home .steps__item p {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .steps__link {
  display: inline-block;
  font-size: 14px;
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 220ms var(--ease), color 220ms var(--ease);
}

.page-home .steps__link:hover,
.page-home .steps__link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 03 功能入口 ---------- */
.page-home .home-entries {
  position: relative;
  padding: 30px 0 0;
}

.page-home .home-entries__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 120px 32px 32px 32px;
  opacity: 0.16;
  pointer-events: none;
}

.page-home .home-entries__grid {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 26px 16px 20px;
}

.page-home .ecard {
  padding: 30px 26px;
  background: rgba(27, 24, 41, 0.86);
  border: 1px solid var(--line);
  border-radius: 32px 32px 32px 8px;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-home .ecard:nth-child(2),
.page-home .ecard:nth-child(3) {
  border-radius: 96px 32px 32px 32px;
}

.page-home .ecard:hover {
  border-color: var(--neon);
  transform: translateX(4px);
  box-shadow: 0 0 0 1px rgba(107, 76, 230, 0.35), var(--home-glow);
}

.page-home .ecard__tag {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 16px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-soft);
  background: var(--red);
  border-radius: 14px 14px 14px 3px;
}

.page-home .ecard__title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.page-home .ecard p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .ecard__link {
  display: inline-block;
  font-size: 14px;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: border-color 220ms var(--ease), color 220ms var(--ease);
}

.page-home .ecard__link:hover,
.page-home .ecard__link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 04 运营情况 ---------- */
.page-home .home-chapter--scale {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-soft) 60%, var(--ink) 100%);
}

.page-home .home-scale {
  display: grid;
  gap: 34px;
}

.page-home .home-scale__text p {
  margin: 0 0 18px;
  max-width: var(--measure);
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-scale__more {
  margin-top: 8px;
}

.page-home .metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.page-home .metrics__item {
  padding: 22px 20px;
  background: var(--blue);
  border: 1px solid var(--line);
  border-radius: 28px 28px 28px 8px;
}

.page-home .metrics__item:nth-child(2) {
  background: var(--surface);
  border-radius: 28px 28px 8px 28px;
  border-color: var(--gold);
}

.page-home .metrics__item:nth-child(3) {
  background: var(--surface);
  border-radius: 8px 28px 28px 28px;
}

.page-home .metrics__item:nth-child(4) {
  background: var(--blue);
  border-radius: 28px 8px 28px 28px;
}

.page-home .metrics__value {
  display: block;
  font-family: var(--font-num);
  font-size: 30px;
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.page-home .metrics__value em {
  font-style: normal;
  font-size: 14px;
  margin-left: 4px;
  color: var(--gold-soft);
}

.page-home .metrics__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ---------- 05 更新与联系 ---------- */
.page-home .home-reach {
  display: grid;
  gap: 24px;
}

.page-home .home-reach__col,
.page-home .home-reach__card {
  padding: 30px 26px;
  border-radius: var(--home-r-sm);
}

.page-home .home-reach__col {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 32px 96px 32px 32px;
}

.page-home .home-reach__card {
  background: var(--surface);
  border: 1px solid var(--line);
}

.page-home .home-reach__sub {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.page-home .home-reach__col p,
.page-home .home-reach__card p {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .linkrow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-home .linkrow__a {
  display: inline-block;
  padding: 9px 18px;
  font-size: 14px;
  color: var(--gold-soft);
  text-decoration: none;
  background: rgba(142, 27, 46, 0.35);
  border: 1px solid var(--line);
  border-radius: 14px 14px 14px 3px;
  transition: border-color 220ms var(--ease), color 220ms var(--ease), background 220ms var(--ease);
}

.page-home .linkrow__a:hover,
.page-home .linkrow__a:focus-visible {
  color: var(--text);
  background: var(--red);
  border-color: var(--gold);
}

.page-home .contactlist {
  margin: 0 0 22px;
}

.page-home .contactlist__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .contactlist__row:last-child {
  border-bottom: 0;
}

.page-home .contactlist__key {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-home .contactlist__val {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-home .contactlist__text {
  font-family: var(--font-num);
  font-size: 16px;
  color: var(--gold-soft);
  word-break: break-all;
}

.page-home .home-reach__btn {
  width: 100%;
}

/* ---------- 返回顶部 ---------- */
.page-home .home-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 40;
  padding: 10px 14px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-decoration: none;
  background: rgba(27, 24, 41, 0.92);
  border: 1px solid var(--line);
  border-radius: 14px 14px 14px 3px;
  opacity: 0.55;
  transition: opacity 220ms var(--ease), border-color 220ms var(--ease);
}

.page-home .home-top:hover,
.page-home .home-top:focus-visible {
  opacity: 1;
  border-color: var(--neon);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home {
    --home-pad: 32px;
  }

  .page-home .home-hero {
    padding: 64px 0 80px;
  }

  .page-home .home-hero__title {
    font-size: 46px;
  }

  .page-home .home-chapter__num {
    font-size: 96px;
  }

  .page-home .home-chapter__title {
    font-size: 32px;
  }

  .page-home .home-chapter__head {
    margin-bottom: 56px;
  }

  .page-home .chapnav {
    grid-template-columns: repeat(2, 1fr);
    gap: 4px 32px;
  }

  .page-home .home-version,
  .page-home .home-scale,
  .page-home .home-reach {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
  }

  .page-home .home-start {
    gap: 40px;
  }

  .page-home .steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-home .home-entries__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
    padding: 34px 28px 28px;
  }

  .page-home .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-home .home-reach__btn {
    width: auto;
  }

  .page-home .contactlist__row {
    grid-template-columns: 92px 1fr;
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-home .home-hero__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
    align-items: center;
  }

  .page-home .home-hero__lead {
    grid-column: 1 / 7;
  }

  .page-home .home-hero__visual {
    grid-column: 7 / -1;
    transform: translateX(7%);
  }

  .page-home .home-hero__map {
    margin-top: 72px;
  }

  .page-home .home-chapter {
    padding: 180px 0;
  }

  .page-home .home-chapter__title {
    font-size: 40px;
    max-width: 22em;
  }

  .page-home .home-version {
    grid-template-columns: 5fr 6fr;
    gap: 72px;
  }

  .page-home .home-start {
    grid-template-columns: 4fr 8fr;
    gap: 56px;
    align-items: start;
  }

  .page-home .home-scale {
    grid-template-columns: 6fr 5fr;
    gap: 72px;
  }

  .page-home .metrics {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .chapnav__link,
  .page-home .steps__item,
  .page-home .ecard,
  .page-home .home-top,
  .page-home .linkrow__a {
    transition: none;
  }

  .page-home .chapnav__link:hover,
  .page-home .steps__item:hover,
  .page-home .ecard:hover,
  .page-home .home-hero__visual {
    transform: none;
  }
}